[PATCH -next] crypto: xilinx - Remove set but not used variable 'drv_ctx'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/crypto/xilinx/zynqmp-aes-gcm.c: In function 'zynqmp_aes_aead_cipher':
drivers/crypto/xilinx/zynqmp-aes-gcm.c:83:30: warning:
 variable 'drv_ctx' set but not used [-Wunused-but-set-variable]

commit bc86f9c54616 ("firmware: xilinx: Remove eemi ops for aes engine") left
behind this, remove it.

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/crypto/xilinx/zynqmp-aes-gcm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/crypto/xilinx/zynqmp-aes-gcm.c 
b/drivers/crypto/xilinx/zynqmp-aes-gcm.c
index d0a0daf3ea08..9a342932b7f3 100644
--- a/drivers/crypto/xilinx/zynqmp-aes-gcm.c
+++ b/drivers/crypto/xilinx/zynqmp-aes-gcm.c
@@ -79,8 +79,6 @@ static int zynqmp_aes_aead_cipher(struct aead_request *req)
        struct zynqmp_aead_tfm_ctx *tfm_ctx = crypto_aead_ctx(aead);
        struct zynqmp_aead_req_ctx *rq_ctx = aead_request_ctx(req);
        struct device *dev = tfm_ctx->dev;
-       struct aead_alg *alg = crypto_aead_alg(aead);
-       struct zynqmp_aead_drv_ctx *drv_ctx;
        struct zynqmp_aead_hw_req *hwreq;
        dma_addr_t dma_addr_data, dma_addr_hw_req;
        unsigned int data_size;
@@ -89,8 +87,6 @@ static int zynqmp_aes_aead_cipher(struct aead_request *req)
        char *kbuf;
        int err;
 
-       drv_ctx = container_of(alg, struct zynqmp_aead_drv_ctx, alg.aead);
-
        if (tfm_ctx->keysrc == ZYNQMP_AES_KUP_KEY)
                dma_size = req->cryptlen + ZYNQMP_AES_KEY_SIZE
                           + GCM_AES_IV_SIZE;